You can think of a wallet as your personal interface to the Bitcoin network, similar to how your online bank account is an interface to the regular monetary system.
Bitcoin wallets contain private keys; secret codes that allow you to spend your bitcoins. A hardware wallet is a physical electronic device, built for the sole purpose of securing bitcoins. I will suggest you some popular Hardware wallet :
BTC Hardware Wallet...
1. Ledger Nano S
2. KeepKey
3. Trezor